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3 Commits

Author SHA1 Message Date
Greg Kroah-Hartman
206a81c184 lzo: properly check for overruns 
The lzo decompressor can, if given some really crazy data, possibly
overrun some variable types.  Modify the checking logic to properly
detect overruns before they happen.

Reported-by: "Don A. Bailey" <donb@securitymouse.com>
Tested-by: "Don A. Bailey" <donb@securitymouse.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2014-06-23 14:12:01 -04:00
Markus F.X.J. Oberhumer
8b975bd3f9 lib/lzo: Update LZO compression to current upstream version 
This commit updates the kernel LZO code to the current upsteam version
which features a significant speed improvement - benchmarking the Calgary
and Silesia test corpora typically shows a doubled performance in
both compression and decompression on modern i386/x86_64/powerpc machines.

Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
 2013-02-20 19:36:01 +01:00
Markus F.X.J. Oberhumer
b6bec26cea lib/lzo: Rename lzo1x_decompress.c to lzo1x_decompress_safe.c 
Rename the source file to match the function name and thereby
also make room for a possible future even slightly faster
"non-safe" decompressor version.

Signed-off-by: Markus F.X.J. Oberhumer <markus@oberhumer.com>
 2013-02-20 19:36:00 +01:00